CN87203156U - Ac-dc dual-purpose energy-saving electromagnetic plug - Google Patents

Abstract

The utility model relates to an electromagnet. The power of the present electromagnet is fixed and is not adjusted, the power consumption of the present electromagnet is large, the applicability thereof is poor and the manufacturing cost thereof is high. Two coils are arranged in the electromagnet of the utility model, the power can be changed according to different operating states, so the energy consumption is low; moreover, the electromagnet is provided with a rectifying device, can use an alternate-current power supply and a direct-current power supply and can be installed and used on various working positions.

Description

AC-DC dual-purpose energy-saving electromagnetic plug

The utility model relates to a kind of electromagnet.

At the brake of various machineries, be extensive use of electromagnet in electromagnetically operated valve and the large-scale diesel engine, magnet spool gets electric and dead electricity and causes the generation and the disappearance in magnetic field, and then the position of control armature reaches certain and gives fixed purpose.The power of present electromagnet is constant, can not be according to the working condition adjustment, as when starting working, magnet spool is far away apart from armature, need bigger electric current to inhale moving armature to produce enough strong magnetic field, in case armature is sucked in the coil, coil only needs little electric current just can produce the magnetic field that holds magnet, but present electromagnet can not be adjusted operating state voluntarily, thereby has wasted a large amount of electric power.In addition, at present alternating electromagnet and the DC electromagnet of using all respectively has some drawbacks, as the shortcoming of alternating current tracting magnet is: use a large amount of silicon steel sheets, cost height, coil AC impedance are big, and electric energy loss is big, and can not be parallel or be inverted and install.Though the DC traction electromagnet does not have above-mentioned shortcoming, but when work, must use DC power supply, very inconvenient during actual the use.

The electromagnet that the utility model proposes can be according to different operating position automatic switchover actuating coil, to change the power of electromagnet, realize energy-conservation purpose, can be suitable for two kinds of electric currents of alternating current-direct current in addition and can overcome present alternating electromagnet and the existing drawback of DC electromagnet.

Structure of the present utility model is as shown in Figure 1: partly be made up of armature 5, coil 6,7, spring 1 etc.Coil 6 and coil 7 are unequal two coils of the number of turn, near inboard coil 6 are initial actuating coils, coil 7 near the outside is coils of holding armature attracting state, the number of turn of coil 7 is greater than the number of turn of coil 6, thereby the electric current that passes through is less than the electric current in the coil 6, and coil 7 is lower than coil 6 power consumptions.Coil 6 and coil 7 are connected on respectively on two fixed contacts 17,19 of diverter switch 11, and be connected with rectifying device or directly be connected in a pair of binding post that connects DC power supply on the binding post 14 by diverter switch, the binding post that connects AC power on the binding post 14 is connected with rectifying device.The slip lever 9 of moving contact 15 is installed on the electromagnet back seat 8 in the diverter switch 11.When starting working, the moving contact 15 of diverter switch is communicated with contact 16,17 coils 6 and gets, produce magnetic field suction armature 5, at this moment armature 5 promotes the slip lever 9 of commutation circuit, disjunction contact 16,17, make contact 18,19, coil 7 work, though the magnetic field that coil 7 produces is weaker than the magnetic field that coil 6 produces, because this moment, armature all entered the most intensive position of the magnetic line of force in the magnetic field, thereby attracting state that can holding armature.The rectifying device of installing in the utility model preferably adopts bridge rectifier, and is low with acquisition cost, the effect of working stability.

The electromagnet that electromagnet that the utility model proposes uses more at present has many outstanding advantages, as adjustable operating current, and obvious energy conservation, applicability is good, and can use two kinds of power supplys of alternating current-direct current, can install on various different operatings position.

Embodiment:

Accompanying drawing 1 is the vertical view of an embodiment of the present utility model, and accompanying drawing 2 is winding wiring figure.1 is spring in the accompanying drawing 1, and material is a manganese 60, and diameter phi 2.5,15 circles 2 are end cap, 3 is screw rod, and 4 is overcoat, the 5th, and armature, material A3, the 6th, coil coil turn 5000,0.69 millimeter in line footpath, the 7th, coil, 0.69 millimeter in coil turn 8000 lines footpath, 8 is base, the 9th, the slip lever in the diverter switch, 10 is back seat, 11 is diverter switch, 12 is bonnet, and 13 is rectifying device, and 14 is binding post.15 is the moving contact of diverter switch in the accompanying drawing 2, and 16,17,18,19 is fixed contact.Diode in the rectification circuit be 2CP.

Claims (2)

1, a kind of electromagnet of being made up of solenoid, armature, screw rod, spring is characterized in that:

A) there are two unequal solenoids of the number of turn magnet inside;

B) two coils link to each other with a rectifying device by a diverter switch;

C) rectifying device has bridge circuit.

2, electromagnet as claimed in claim 1 is characterized in that said diverter switch is made up of two groups of fixed contacts and a contact that has the slip lever.

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